F24D 11/002
Water heating system
Official title: {water heating system}
F24D11/002 (Water heating system) appears on 343 US grants and 293 published applications in this corpus.
Search patents in F24D- Granted patents
- 343
- Published applications
- 293
- Assignees
- 208
- Inventors
- 672
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 19 | 0 |
| 1978 | 19 | 0 |
| 1979 | 19 | 0 |
| 1980 | 19 | 0 |
| 1981 | 22 | 0 |
| 1982 | 13 | 0 |
| 1983 | 19 | 0 |
| 1984 | 17 | 0 |
| 1985 | 10 | 0 |
| 1986 | 7 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 3 |
| 2003 | 2 | 1 |
| 2004 | 3 | 4 |
| 2005 | 1 | 3 |
| 2006 | 2 | 2 |
| 2007 | 0 | 7 |
| 2008 | 2 | 7 |
| 2009 | 1 | 19 |
| 2010 | 4 | 25 |
| 2011 | 1 | 33 |
| 2012 | 10 | 25 |
| 2013 | 8 | 18 |
| 2014 | 13 | 18 |
| 2015 | 10 | 22 |
| 2016 | 8 | 8 |
| 2017 | 8 | 9 |
| 2018 | 19 | 18 |
| 2019 | 6 | 11 |
| 2020 | 7 | 6 |
| 2021 | 12 | 6 |
| 2022 | 8 | 10 |
| 2023 | 6 | 7 |
| 2024 | 6 | 21 |
| 2025 | 12 | 8 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hot water circulation device and hot water device monitoring system23 Jun 2026US 12,663,166 B2Noritz Corporation
- Heating system9 Jun 2026US 12,650,234 B2Intellihot, Inc.
- Methods and systems and apparatus to support reduced energy and water usage31 Mar 2026US 12,590,713 B2Octopus Energy Heating Limited
- System for producing heat for domestic hot water or central heating3 Feb 2026US 12,540,737 B2Daikin Europe N.V.
- System and method for hydronic distribution with submersible pumps in an unpressurized tank30 Dec 2025US 12,510,255 B2Hunt Utilities Group LLC
- Thermal fluid conveyance manifold and operation thereof17 Sep 2026US 2026/0276215 A1
- Heating system4 Jun 2026US 2026/0153266 A1Intellihot, Inc.
- Improvements to heating systems20 Nov 2025US 2025/0354698 A1Cop Angel Ltd
- Expansion tank with heat accumulation16 Oct 2025US 2025/0321021 A1Zilmet S.P.A.
- Solar thermal energy collection and storage for heating buildings9 Oct 2025US 2025/0314387 A1
Most cited
By later US patents
- Solar energy recovery system93US 4,476,853 A1984
- Utilities container82US 6,393,775 B12002
- Method and apparatus for operating an improved thermocline storage unit77US 4,523,629 AThe United States of America as represented by the United States Department of Energy · 1985
- Heat pump assisted solar powered absorption system66US 4,070,870 ABorg-Warner Corporation · 1978
- Energy system for buildings49US 6,220,339 B12001